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Derivative Financial Instruments - Additional Information (Details) bbl in Millions, $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2018 USD ($) bbl	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($) bbl
Derivative Financial Instruments
Gain on derivatives, net	$ 59.3	$ 12.2
CVR Refining, LP | Commodity Derivatives
Derivative Financial Instruments
Derivative position, loss	0.2
Gain on derivatives, net	$ 0.2	(0.1)
CVR Refining, LP | Crack Spreads | Not Designated as Hedges
Derivative Financial Instruments
Number of barrels | bbl			3.6
CVR Refining, LP | 2-1-1 Crack Spreads | Not Designated as Hedges
Derivative Financial Instruments
Number of barrels | bbl	1.7		7.1
CVR Refining, LP | Distillate Crack Spreads | Not Designated as Hedges
Derivative Financial Instruments
Number of barrels | bbl	0.6
CVR Refining, LP | Gasoline Crack Spreads | Not Designated as Hedges
Derivative Financial Instruments
Number of barrels | bbl	0.6		3.6
CVR Refining, LP | Derivative Canadian Crude Oil | Not Designated as Hedges
Derivative Financial Instruments
Number of barrels | bbl	4.2
CVR Refining, LP | Commodity Swap, Not Considered Probable Of Settlement | Not Designated as Hedges
Derivative Financial Instruments
Number of barrels | bbl			5.8
CVR Refining, LP | Commodity Derivatives
Derivative Financial Instruments
Gain on derivatives, net	$ 59.7	$ 12.3
CVR Refining, LP | Commodity Derivatives | Not Designated as Hedges
Derivative Financial Instruments
Derivative position, loss	18.5		$ 64.3
Other Current Assets | CVR Refining, LP | Commodity Derivatives | Not Designated as Hedges
Derivative Financial Instruments
Derivative position, loss	3.1
Other Current Liabilities | CVR Refining, LP | Commodity Derivatives | Not Designated as Hedges
Derivative Financial Instruments
Derivative position, loss	$ 21.6

X

- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13495-108611

+ Details

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X

- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5618551-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (a),(c),(d),(e)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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X

- Definition

Nominal volume used to calculate payments on a derivative instrument.

+ References

No definition available.

+ Details

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